package com.cwz.core.utils.exception;

import com.cwz.core.utils.string.StringUtils;
import org.apache.commons.lang3.exception.ExceptionUtils;

import java.io.PrintWriter;
import java.io.StringWriter;

/**
 * @program: w-demo
 * @description: 错误信息处理工具类
 * @author: Wen
 **/
public class ExceptionUtil {
	/**
	 * 获取exception的详细错误信息。
	 */
	public static String getExceptionMessage(Throwable e) {
		StringWriter sw = new StringWriter();
		e.printStackTrace(new PrintWriter(sw, true));
		return sw.toString();
	}

	public static String getRootErrorMessage(Exception e) {
		Throwable root = ExceptionUtils.getRootCause(e);
		root = (root == null ? e : root);
		if (root == null) {
			return "";
		}
		String message = root.getMessage();
		if (message == null) {
			return "null";
		}
		return StringUtils.defaultString(message);
	}
}
